Ivy Union Publishing | http: //www.ivyunion.org ISSN 2572-5734 January 25, 2017 | Volume 5 | Issue 1 Kumar S et al., American Journal of Polymer Science & Engineering 2017, 5:13-23 Page 1 of 11 Effect of Hybridization of Glass/kevlar Fiber on Mechanical Properties of Bast Reinforced Polymer Composites: A Review Sandeep Kumar 1 , Lalta Prasad 2 , and Vinay Kumar Patel 2* 1 Mechanical Engineering Department, S.O.E.T., H.N.B. Garhwal University Srinagar Garhwal- 246174, Uttarakhand, India 2 Department of Mechanical Engineering, Govind Ballabh Pant Engineering College Pauri Garhwal, Uttarakhand, India American Journal of Polymer Science & Engineering http://www.ivyunion.org/index.php/ajpse/ Review Article Keywords: Bast fiber; glass /kevlar fibre; hybrid composites; Mechanical properties Received: November 13, 2016; Accepted: January 8, 2017; Published: January 25, 2017 Competing Interests : The authors have declared that no competing interests exist. Copyright: 2017 Patel VK et al . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. *Correspondence to: Vinay Kumar Patel, Department of Mechanical Engineering, Govind Ballabh Pant Engineering College Pauri Garhwal, Uttarakhand, India E-mail : vinaykrpatel@gmail.com Abstract Natural fibres are gaining more and more interest as reinforcing materials for polymer composite due to their environmental and economical benefits. Bast fibers is a prominent reinforcement for use in polymeric materials because of its low specific weight and cost, eco-friendly and abundantly available in nature. Several authors manifest the cellulosic fibers based polymeric composites as advantageously used in automobile industries and structural applications, but certain problems have been associated during usage of such fiber such as high water/mosture-uptake and low strength than inorganic fibers. These problems have been reduced to a major extent with enhancements in mechanical properties by the researchers through hybridization of these natural fiber based composites with synthetic fiber (glass/Kevlar). In the present article, we reviewed the effect of hybridization of glass/Kevlar synthetic fibers on mechanical properties of bast fiber (jute, hemp, kenaf, flax) reinforced polymer composites.